Toyota Prius 2012 — technical service bulletin
Bulletin Prius LKA Follow · NHTSA communication 10133819 · issued Mar 29, 2013
Technical service bulletin
communication type
Lane Departure
component
2012
model years
1
vehicle entries
Official summary
On your 2012 model year Prius vehicle, the Lane-Keeping Assist (LKA) system may not activate the lane departure warning (beep) when the vehicle begins to deviate from the marked lane. All other features of the LKA system operate as designed.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.